#include "petsc/private/snesimpl.h" PetscErrorCode SNESConvergedDefault(SNES snes,PetscInt it,PetscReal xnorm,PetscReal snorm,PetscReal fnorm,SNESConvergedReason *reason,void *dummy)Collective on SNES
| snes | - the SNES context | |
| it | - the iteration (0 indicates before any Newton steps) | |
| xnorm | - 2-norm of current iterate | |
| snorm | - 2-norm of current step | |
| fnorm | - 2-norm of function at current iterate | |
| dummy | - unused context |
SNES_CONVERGED_FNORM_ABS - (fnorm < abstol),
SNES_CONVERGED_SNORM_RELATIVE - (snorm < stol*xnorm),
SNES_CONVERGED_FNORM_RELATIVE - (fnorm < rtol*fnorm0),
SNES_DIVERGED_FUNCTION_COUNT - (nfct > maxf),
SNES_DIVERGED_FNORM_NAN - (fnorm == NaN),
SNES_CONVERGED_ITERATING - (otherwise),
where
| maxf | - maximum number of function evaluations, set with SNESSetTolerances() | |
| nfct | - number of function evaluations, | |
| abstol | - absolute function norm tolerance, set with SNESSetTolerances() | |
| rtol | - relative function norm tolerance, set with SNESSetTolerances() |